package/dfu-util: add license hash

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/dfu-util/dfu-util.hash

@@ -3,3 +3,4 @@ md5	233bb1e08ef4b405062445d84e28fde6	dfu-util-0.9.tar.gz
 
 # Locally computed
 sha256	36428c6a6cb3088cad5a3592933385253da5f29f2effa61518ee5991ea38f833	dfu-util-0.9.tar.gz
+sha256	32b1062f7da84967e7019d01ab805935caa7ab7321a7ced0e30ebe75e5df1670	COPYING